%:. 
846 Tillia Pycnanthemoides. 
Perilomia.—Cal. —_ inv, dorso  ¢ ieay fructifer clausus. 
Corol. tubo arcuato 2. Anthere didyme. 
Hoaiindiveeséaaly as Corol. 2, labii infe a! 
Stam. adscendentia, antheris didymis, loculo es casso. 
Synandra.—Cal. §- Corol. }, fauce inflata. F'ilamenta tomen-— 
tosa, anther superiores loculis superioribus cassis. coherentes.” 
age this synopsis it will be obvious that our plant can be referred 
o none of these genera. From that section of the genera which is 
rm of its perianth : but it seems to 3 eit nearer to the genus 
Pycnanthemum, thar to any other. 
According. to Michaux, the founder of that genus, its sia char- 
acter, (in co = istinction from Brachystémum,) is as follows, viz: 
tubulosus, multistriatus; quinquefidus ; dentibus erectis, 
didi lenececdicti seu subulatis. 
orolla,—tubus longitudine calycis ; labium superius subrecurvo- 
porrectum, ee modice convexum, apice rotundatum, 
subinte: ium inferius multo majus, recurvo-patens ; subean- 
-aliculatum cheat laciniis lateralibus subsemiellipticis, . intermedia 
longiore, pauloque latieci, nonnihil repandula. 
Stamina exserta, distantia, duo labio superiori longitudine sube- 
qualia, duo conspicue breviora ; anthere loculis subparallelis, ete- 
_ Observatio.—Genus affine Studion: 
Habitus—Herbe perennes seu suftrutices. F olia punctata. 
Capitula subsimplicia seu composita, multibracteata 
The natural character of Michaux’s Genus Breathe ystémuin, “~ 
has been since united with Pycnanthemum, i is as follows : 
it: Calye tubulosus ;  dentibus quinque yi bi Mis bas 
acutis; fauce nuda. ey 
Corolla. —tubus longitudide ‘calycis, racil 
breve, porrectum leviter emarginatum 3 iabingi ies 
plius, pétens, ee trilobum, intermedio produetic 
longo. 
~ Stamina flameete Srabecimis inclusa, nipple 
Semina cylindraceo-oblonga. 
Habitus —Labiate perennes ; folia puncticulosa ; ; verticilli cour 
fertiflori seu capitula; bracteolis ciliatis.” 
The essential character of these two genera united, as 
Pursh, is “ Involucrum multi-bracteatum, “capituls subjectum 
iubulatus striatus. Corolle labium superius subintegrum, in 
trifidum. Stamina subequalia.” 
~ 
given by 
; calyx 
ferius 
